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authorDaniel Baumann <daniel.baumann@progress-linux.org>2024-04-27 10:05:51 +0000
committerDaniel Baumann <daniel.baumann@progress-linux.org>2024-04-27 10:05:51 +0000
commit5d1646d90e1f2cceb9f0828f4b28318cd0ec7744 (patch)
treea94efe259b9009378be6d90eb30d2b019d95c194 /include/net/bluetooth/hci_core.h
parentInitial commit. (diff)
downloadlinux-5d1646d90e1f2cceb9f0828f4b28318cd0ec7744.tar.xz
linux-5d1646d90e1f2cceb9f0828f4b28318cd0ec7744.zip
Adding upstream version 5.10.209.upstream/5.10.209upstream
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'include/net/bluetooth/hci_core.h')
-rw-r--r--include/net/bluetooth/hci_core.h1809
1 files changed, 1809 insertions, 0 deletions
diff --git a/include/net/bluetooth/hci_core.h b/include/net/bluetooth/hci_core.h
new file mode 100644
index 000000000..33873266b
--- /dev/null
+++ b/include/net/bluetooth/hci_core.h
@@ -0,0 +1,1809 @@
+/*
+ BlueZ - Bluetooth protocol stack for Linux
+ Copyright (c) 2000-2001, 2010, Code Aurora Forum. All rights reserved.
+
+ Written 2000,2001 by Maxim Krasnyansky <maxk@qualcomm.com>
+
+ This program is free software; you can redistribute it and/or modify
+ it under the terms of the GNU General Public License version 2 as
+ published by the Free Software Foundation;
+
+ THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
+ OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT OF THIRD PARTY RIGHTS.
+ IN NO EVENT SHALL THE COPYRIGHT HOLDER(S) AND AUTHOR(S) BE LIABLE FOR ANY
+ CLAIM, OR ANY SPECIAL INDIRECT OR CONSEQUENTIAL DAMAGES, OR ANY DAMAGES
+ WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
+ ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
+ OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
+
+ ALL LIABILITY, INCLUDING LIABILITY FOR INFRINGEMENT OF ANY PATENTS,
+ COPYRIGHTS, TRADEMARKS OR OTHER RIGHTS, RELATING TO USE OF THIS
+ SOFTWARE IS DISCLAIMED.
+*/
+
+#ifndef __HCI_CORE_H
+#define __HCI_CORE_H
+
+#include <linux/idr.h>
+#include <linux/leds.h>
+#include <linux/rculist.h>
+
+#include <net/bluetooth/hci.h>
+#include <net/bluetooth/hci_sock.h>
+
+/* HCI priority */
+#define HCI_PRIO_MAX 7
+
+/* HCI maximum id value */
+#define HCI_MAX_ID 10000
+
+/* HCI Core structures */
+struct inquiry_data {
+ bdaddr_t bdaddr;
+ __u8 pscan_rep_mode;
+ __u8 pscan_period_mode;
+ __u8 pscan_mode;
+ __u8 dev_class[3];
+ __le16 clock_offset;
+ __s8 rssi;
+ __u8 ssp_mode;
+};
+
+struct inquiry_entry {
+ struct list_head all; /* inq_cache.all */
+ struct list_head list; /* unknown or resolve */
+ enum {
+ NAME_NOT_KNOWN,
+ NAME_NEEDED,
+ NAME_PENDING,
+ NAME_KNOWN,
+ } name_state;
+ __u32 timestamp;
+ struct inquiry_data data;
+};
+
+struct discovery_state {
+ int type;
+ enum {
+ DISCOVERY_STOPPED,
+ DISCOVERY_STARTING,
+ DISCOVERY_FINDING,
+ DISCOVERY_RESOLVING,
+ DISCOVERY_STOPPING,
+ } state;
+ struct list_head all; /* All devices found during inquiry */
+ struct list_head unknown; /* Name state not known */
+ struct list_head resolve; /* Name needs to be resolved */
+ __u32 timestamp;
+ bdaddr_t last_adv_addr;
+ u8 last_adv_addr_type;
+ s8 last_adv_rssi;
+ u32 last_adv_flags;
+ u8 last_adv_data[HCI_MAX_AD_LENGTH];
+ u8 last_adv_data_len;
+ bool report_invalid_rssi;
+ bool result_filtering;
+ bool limited;
+ s8 rssi;
+ u16 uuid_count;
+ u8 (*uuids)[16];
+ unsigned long scan_start;
+ unsigned long scan_duration;
+};
+
+#define SUSPEND_NOTIFIER_TIMEOUT msecs_to_jiffies(2000) /* 2 seconds */
+
+enum suspend_tasks {
+ SUSPEND_PAUSE_DISCOVERY,
+ SUSPEND_UNPAUSE_DISCOVERY,
+
+ SUSPEND_PAUSE_ADVERTISING,
+ SUSPEND_UNPAUSE_ADVERTISING,
+
+ SUSPEND_SCAN_DISABLE,
+ SUSPEND_SCAN_ENABLE,
+ SUSPEND_DISCONNECTING,
+
+ SUSPEND_POWERING_DOWN,
+
+ SUSPEND_PREPARE_NOTIFIER,
+ __SUSPEND_NUM_TASKS
+};
+
+enum suspended_state {
+ BT_RUNNING = 0,
+ BT_SUSPEND_DISCONNECT,
+ BT_SUSPEND_CONFIGURE_WAKE,
+};
+
+struct hci_conn_hash {
+ struct list_head list;
+ unsigned int acl_num;
+ unsigned int amp_num;
+ unsigned int sco_num;
+ unsigned int le_num;
+ unsigned int le_num_slave;
+};
+
+struct bdaddr_list {
+ struct list_head list;
+ bdaddr_t bdaddr;
+ u8 bdaddr_type;
+};
+
+struct bdaddr_list_with_irk {
+ struct list_head list;
+ bdaddr_t bdaddr;
+ u8 bdaddr_type;
+ u8 peer_irk[16];
+ u8 local_irk[16];
+};
+
+struct bdaddr_list_with_flags {
+ struct list_head list;
+ bdaddr_t bdaddr;
+ u8 bdaddr_type;
+ u32 current_flags;
+};
+
+enum hci_conn_flags {
+ HCI_CONN_FLAG_REMOTE_WAKEUP,
+ HCI_CONN_FLAG_MAX
+};
+
+#define hci_conn_test_flag(nr, flags) ((flags) & (1U << nr))
+
+/* Make sure number of flags doesn't exceed sizeof(current_flags) */
+static_assert(HCI_CONN_FLAG_MAX < 32);
+
+struct bt_uuid {
+ struct list_head list;
+ u8 uuid[16];
+ u8 size;
+ u8 svc_hint;
+};
+
+struct blocked_key {
+ struct list_head list;
+ struct rcu_head rcu;
+ u8 type;
+ u8 val[16];
+};
+
+struct smp_csrk {
+ bdaddr_t bdaddr;
+ u8 bdaddr_type;
+ u8 link_type;
+ u8 type;
+ u8 val[16];
+};
+
+struct smp_ltk {
+ struct list_head list;
+ struct rcu_head rcu;
+ bdaddr_t bdaddr;
+ u8 bdaddr_type;
+ u8 link_type;
+ u8 authenticated;
+ u8 type;
+ u8 enc_size;
+ __le16 ediv;
+ __le64 rand;
+ u8 val[16];
+};
+
+struct smp_irk {
+ struct list_head list;
+ struct rcu_head rcu;
+ bdaddr_t rpa;
+ bdaddr_t bdaddr;
+ u8 addr_type;
+ u8 link_type;
+ u8 val[16];
+};
+
+struct link_key {
+ struct list_head list;
+ struct rcu_head rcu;
+ bdaddr_t bdaddr;
+ u8 bdaddr_type;
+ u8 link_type;
+ u8 type;
+ u8 val[HCI_LINK_KEY_SIZE];
+ u8 pin_len;
+};
+
+struct oob_data {
+ struct list_head list;
+ bdaddr_t bdaddr;
+ u8 bdaddr_type;
+ u8 present;
+ u8 hash192[16];
+ u8 rand192[16];
+ u8 hash256[16];
+ u8 rand256[16];
+};
+
+struct adv_info {
+ struct list_head list;
+ bool pending;
+ __u8 instance;
+ __u32 flags;
+ __u16 timeout;
+ __u16 remaining_time;
+ __u16 duration;
+ __u16 adv_data_len;
+ __u8 adv_data[HCI_MAX_EXT_AD_LENGTH];
+ __u16 scan_rsp_len;
+ __u8 scan_rsp_data[HCI_MAX_EXT_AD_LENGTH];
+ __s8 tx_power;
+ bdaddr_t random_addr;
+ bool rpa_expired;
+ struct delayed_work rpa_expired_cb;
+};
+
+#define HCI_MAX_ADV_INSTANCES 5
+#define HCI_DEFAULT_ADV_DURATION 2
+
+struct adv_pattern {
+ struct list_head list;
+ __u8 ad_type;
+ __u8 offset;
+ __u8 length;
+ __u8 value[HCI_MAX_AD_LENGTH];
+};
+
+struct adv_monitor {
+ struct list_head patterns;
+ bool active;
+ __u16 handle;
+};
+
+#define HCI_MIN_ADV_MONITOR_HANDLE 1
+#define HCI_MAX_ADV_MONITOR_NUM_HANDLES 32
+#define HCI_MAX_ADV_MONITOR_NUM_PATTERNS 16
+
+#define HCI_MAX_SHORT_NAME_LENGTH 10
+
+/* Min encryption key size to match with SMP */
+#define HCI_MIN_ENC_KEY_SIZE 7
+
+/* Default LE RPA expiry time, 15 minutes */
+#define HCI_DEFAULT_RPA_TIMEOUT (15 * 60)
+
+/* Default min/max age of connection information (1s/3s) */
+#define DEFAULT_CONN_INFO_MIN_AGE 1000
+#define DEFAULT_CONN_INFO_MAX_AGE 3000
+/* Default authenticated payload timeout 30s */
+#define DEFAULT_AUTH_PAYLOAD_TIMEOUT 0x0bb8
+
+struct amp_assoc {
+ __u16 len;
+ __u16 offset;
+ __u16 rem_len;
+ __u16 len_so_far;
+ __u8 data[HCI_MAX_AMP_ASSOC_SIZE];
+};
+
+#define HCI_MAX_PAGES 3
+
+struct hci_dev {
+ struct list_head list;
+ struct mutex lock;
+
+ const char *name;
+ unsigned long flags;
+ __u16 id;
+ __u8 bus;
+ __u8 dev_type;
+ bdaddr_t bdaddr;
+ bdaddr_t setup_addr;
+ bdaddr_t public_addr;
+ bdaddr_t random_addr;
+ bdaddr_t static_addr;
+ __u8 adv_addr_type;
+ __u8 dev_name[HCI_MAX_NAME_LENGTH];
+ __u8 short_name[HCI_MAX_SHORT_NAME_LENGTH];
+ __u8 eir[HCI_MAX_EIR_LENGTH];
+ __u16 appearance;
+ __u8 dev_class[3];
+ __u8 major_class;
+ __u8 minor_class;
+ __u8 max_page;
+ __u8 features[HCI_MAX_PAGES][8];
+ __u8 le_features[8];
+ __u8 le_accept_list_size;
+ __u8 le_resolv_list_size;
+ __u8 le_num_of_adv_sets;
+ __u8 le_states[8];
+ __u8 commands[64];
+ __u8 hci_ver;
+ __u16 hci_rev;
+ __u8 lmp_ver;
+ __u16 manufacturer;
+ __u16 lmp_subver;
+ __u16 voice_setting;
+ __u8 num_iac;
+ __u8 stored_max_keys;
+ __u8 stored_num_keys;
+ __u8 io_capability;
+ __s8 inq_tx_power;
+ __u8 err_data_reporting;
+ __u16 page_scan_interval;
+ __u16 page_scan_window;
+ __u8 page_scan_type;
+ __u8 le_adv_channel_map;
+ __u16 le_adv_min_interval;
+ __u16 le_adv_max_interval;
+ __u8 le_scan_type;
+ __u16 le_scan_interval;
+ __u16 le_scan_window;
+ __u16 le_scan_int_suspend;
+ __u16 le_scan_window_suspend;
+ __u16 le_scan_int_discovery;
+ __u16 le_scan_window_discovery;
+ __u16 le_scan_int_adv_monitor;
+ __u16 le_scan_window_adv_monitor;
+ __u16 le_scan_int_connect;
+ __u16 le_scan_window_connect;
+ __u16 le_conn_min_interval;
+ __u16 le_conn_max_interval;
+ __u16 le_conn_latency;
+ __u16 le_supv_timeout;
+ __u16 le_def_tx_len;
+ __u16 le_def_tx_time;
+ __u16 le_max_tx_len;
+ __u16 le_max_tx_time;
+ __u16 le_max_rx_len;
+ __u16 le_max_rx_time;
+ __u8 le_max_key_size;
+ __u8 le_min_key_size;
+ __u16 discov_interleaved_timeout;
+ __u16 conn_info_min_age;
+ __u16 conn_info_max_age;
+ __u16 auth_payload_timeout;
+ __u8 min_enc_key_size;
+ __u8 max_enc_key_size;
+ __u8 pairing_opts;
+ __u8 ssp_debug_mode;
+ __u8 hw_error_code;
+ __u32 clock;
+ __u16 advmon_allowlist_duration;
+ __u16 advmon_no_filter_duration;
+
+ __u16 devid_source;
+ __u16 devid_vendor;
+ __u16 devid_product;
+ __u16 devid_version;
+
+ __u8 def_page_scan_type;
+ __u16 def_page_scan_int;
+ __u16 def_page_scan_window;
+ __u8 def_inq_scan_type;
+ __u16 def_inq_scan_int;
+ __u16 def_inq_scan_window;
+ __u16 def_br_lsto;
+ __u16 def_page_timeout;
+ __u16 def_multi_adv_rotation_duration;
+ __u16 def_le_autoconnect_timeout;
+
+ __u16 pkt_type;
+ __u16 esco_type;
+ __u16 link_policy;
+ __u16 link_mode;
+
+ __u32 idle_timeout;
+ __u16 sniff_min_interval;
+ __u16 sniff_max_interval;
+
+ __u8 amp_status;
+ __u32 amp_total_bw;
+ __u32 amp_max_bw;
+ __u32 amp_min_latency;
+ __u32 amp_max_pdu;
+ __u8 amp_type;
+ __u16 amp_pal_cap;
+ __u16 amp_assoc_size;
+ __u32 amp_max_flush_to;
+ __u32 amp_be_flush_to;
+
+ struct amp_assoc loc_assoc;
+
+ __u8 flow_ctl_mode;
+
+ unsigned int auto_accept_delay;
+
+ unsigned long quirks;
+
+ atomic_t cmd_cnt;
+ unsigned int acl_cnt;
+ unsigned int sco_cnt;
+ unsigned int le_cnt;
+
+ unsigned int acl_mtu;
+ unsigned int sco_mtu;
+ unsigned int le_mtu;
+ unsigned int acl_pkts;
+ unsigned int sco_pkts;
+ unsigned int le_pkts;
+
+ __u16 block_len;
+ __u16 block_mtu;
+ __u16 num_blocks;
+ __u16 block_cnt;
+
+ unsigned long acl_last_tx;
+ unsigned long sco_last_tx;
+ unsigned long le_last_tx;
+
+ __u8 le_tx_def_phys;
+ __u8 le_rx_def_phys;
+
+ struct workqueue_struct *workqueue;
+ struct workqueue_struct *req_workqueue;
+
+ struct work_struct power_on;
+ struct delayed_work power_off;
+ struct work_struct error_reset;
+
+ __u16 discov_timeout;
+ struct delayed_work discov_off;
+
+ struct delayed_work service_cache;
+
+ struct delayed_work cmd_timer;
+
+ struct work_struct rx_work;
+ struct work_struct cmd_work;
+ struct work_struct tx_work;
+
+ struct work_struct discov_update;
+ struct work_struct bg_scan_update;
+ struct work_struct scan_update;
+ struct work_struct connectable_update;
+ struct work_struct discoverable_update;
+ struct delayed_work le_scan_disable;
+ struct delayed_work le_scan_restart;
+
+ struct sk_buff_head rx_q;
+ struct sk_buff_head raw_q;
+ struct sk_buff_head cmd_q;
+
+ struct sk_buff *sent_cmd;
+
+ struct mutex req_lock;
+ wait_queue_head_t req_wait_q;
+ __u32 req_status;
+ __u32 req_result;
+ struct sk_buff *req_skb;
+
+ void *smp_data;
+ void *smp_bredr_data;
+
+ struct discovery_state discovery;
+
+ int discovery_old_state;
+ bool discovery_paused;
+ int advertising_old_state;
+ bool advertising_paused;
+
+ struct notifier_block suspend_notifier;
+ struct work_struct suspend_prepare;
+ enum suspended_state suspend_state_next;
+ enum suspended_state suspend_state;
+ bool scanning_paused;
+ bool suspended;
+ u8 wake_reason;
+ bdaddr_t wake_addr;
+ u8 wake_addr_type;
+
+ wait_queue_head_t suspend_wait_q;
+ DECLARE_BITMAP(suspend_tasks, __SUSPEND_NUM_TASKS);
+
+ struct hci_conn_hash conn_hash;
+
+ struct list_head mgmt_pending;
+ struct list_head reject_list;
+ struct list_head accept_list;
+ struct list_head uuids;
+ struct list_head link_keys;
+ struct list_head long_term_keys;
+ struct list_head identity_resolving_keys;
+ struct list_head remote_oob_data;
+ struct list_head le_accept_list;
+ struct list_head le_resolv_list;
+ struct list_head le_conn_params;
+ struct list_head pend_le_conns;
+ struct list_head pend_le_reports;
+ struct list_head blocked_keys;
+
+ struct hci_dev_stats stat;
+
+ atomic_t promisc;
+
+ const char *hw_info;
+ const char *fw_info;
+ struct dentry *debugfs;
+
+ struct device dev;
+
+ struct rfkill *rfkill;
+
+ DECLARE_BITMAP(dev_flags, __HCI_NUM_FLAGS);
+
+ __s8 adv_tx_power;
+ __u8 adv_data[HCI_MAX_EXT_AD_LENGTH];
+ __u8 adv_data_len;
+ __u8 scan_rsp_data[HCI_MAX_EXT_AD_LENGTH];
+ __u8 scan_rsp_data_len;
+
+ struct list_head adv_instances;
+ unsigned int adv_instance_cnt;
+ __u8 cur_adv_instance;
+ __u16 adv_instance_timeout;
+ struct delayed_work adv_instance_expire;
+
+ struct idr adv_monitors_idr;
+ unsigned int adv_monitors_cnt;
+
+ __u8 irk[16];
+ __u32 rpa_timeout;
+ struct delayed_work rpa_expired;
+ bdaddr_t rpa;
+
+ enum {
+ INTERLEAVE_SCAN_NONE,
+ INTERLEAVE_SCAN_NO_FILTER,
+ INTERLEAVE_SCAN_ALLOWLIST
+ } interleave_scan_state;
+
+ struct delayed_work interleave_scan;
+
+#if IS_ENABLED(CONFIG_BT_LEDS)
+ struct led_trigger *power_led;
+#endif
+
+#if IS_ENABLED(CONFIG_BT_MSFTEXT)
+ __u16 msft_opcode;
+ void *msft_data;
+#endif
+
+ int (*open)(struct hci_dev *hdev);
+ int (*close)(struct hci_dev *hdev);
+ int (*flush)(struct hci_dev *hdev);
+ int (*setup)(struct hci_dev *hdev);
+ int (*shutdown)(struct hci_dev *hdev);
+ int (*send)(struct hci_dev *hdev, struct sk_buff *skb);
+ void (*notify)(struct hci_dev *hdev, unsigned int evt);
+ void (*hw_error)(struct hci_dev *hdev, u8 code);
+ int (*post_init)(struct hci_dev *hdev);
+ int (*set_diag)(struct hci_dev *hdev, bool enable);
+ int (*set_bdaddr)(struct hci_dev *hdev, const bdaddr_t *bdaddr);
+ void (*cmd_timeout)(struct hci_dev *hdev);
+ bool (*prevent_wake)(struct hci_dev *hdev);
+};
+
+#define HCI_PHY_HANDLE(handle) (handle & 0xff)
+
+enum conn_reasons {
+ CONN_REASON_PAIR_DEVICE,
+ CONN_REASON_L2CAP_CHAN,
+ CONN_REASON_SCO_CONNECT,
+};
+
+struct hci_conn {
+ struct list_head list;
+
+ atomic_t refcnt;
+
+ bdaddr_t dst;
+ __u8 dst_type;
+ bdaddr_t src;
+ __u8 src_type;
+ bdaddr_t init_addr;
+ __u8 init_addr_type;
+ bdaddr_t resp_addr;
+ __u8 resp_addr_type;
+ __u16 handle;
+ __u16 state;
+ __u8 mode;
+ __u8 type;
+ __u8 role;
+ bool out;
+ __u8 attempt;
+ __u8 dev_class[3];
+ __u8 features[HCI_MAX_PAGES][8];
+ __u16 pkt_type;
+ __u16 link_policy;
+ __u8 key_type;
+ __u8 auth_type;
+ __u8 sec_level;
+ __u8 pending_sec_level;
+ __u8 pin_length;
+ __u8 enc_key_size;
+ __u8 io_capability;
+ __u32 passkey_notify;
+ __u8 passkey_entered;
+ __u16 disc_timeout;
+ __u16 conn_timeout;
+ __u16 setting;
+ __u16 auth_payload_timeout;
+ __u16 le_conn_min_interval;
+ __u16 le_conn_max_interval;
+ __u16 le_conn_interval;
+ __u16 le_conn_latency;
+ __u16 le_supv_timeout;
+ __u8 le_adv_data[HCI_MAX_AD_LENGTH];
+ __u8 le_adv_data_len;
+ __u8 le_tx_phy;
+ __u8 le_rx_phy;
+ __s8 rssi;
+ __s8 tx_power;
+ __s8 max_tx_power;
+ unsigned long flags;
+
+ enum conn_reasons conn_reason;
+
+ __u32 clock;
+ __u16 clock_accuracy;
+
+ unsigned long conn_info_timestamp;
+
+ __u8 remote_cap;
+ __u8 remote_auth;
+ __u8 remote_id;
+
+ unsigned int sent;
+
+ struct sk_buff_head data_q;
+ struct list_head chan_list;
+
+ struct delayed_work disc_work;
+ struct delayed_work auto_accept_work;
+ struct delayed_work idle_work;
+ struct delayed_work le_conn_timeout;
+ struct work_struct le_scan_cleanup;
+
+ struct device dev;
+ struct dentry *debugfs;
+
+ struct hci_dev *hdev;
+ void *l2cap_data;
+ void *sco_data;
+ struct amp_mgr *amp_mgr;
+
+ struct hci_conn *link;
+
+ void (*connect_cfm_cb) (struct hci_conn *conn, u8 status);
+ void (*security_cfm_cb) (struct hci_conn *conn, u8 status);
+ void (*disconn_cfm_cb) (struct hci_conn *conn, u8 reason);
+};
+
+struct hci_chan {
+ struct list_head list;
+ __u16 handle;
+ struct hci_conn *conn;
+ struct sk_buff_head data_q;
+ unsigned int sent;
+ __u8 state;
+ bool amp;
+};
+
+struct hci_conn_params {
+ struct list_head list;
+ struct list_head action;
+
+ bdaddr_t addr;
+ u8 addr_type;
+
+ u16 conn_min_interval;
+ u16 conn_max_interval;
+ u16 conn_latency;
+ u16 supervision_timeout;
+
+ enum {
+ HCI_AUTO_CONN_DISABLED,
+ HCI_AUTO_CONN_REPORT,
+ HCI_AUTO_CONN_DIRECT,
+ HCI_AUTO_CONN_ALWAYS,
+ HCI_AUTO_CONN_LINK_LOSS,
+ HCI_AUTO_CONN_EXPLICIT,
+ } auto_connect;
+
+ struct hci_conn *conn;
+ bool explicit_connect;
+ u32 current_flags;
+};
+
+extern struct list_head hci_dev_list;
+extern struct list_head hci_cb_list;
+extern rwlock_t hci_dev_list_lock;
+extern struct mutex hci_cb_list_lock;
+
+#define hci_dev_set_flag(hdev, nr) set_bit((nr), (hdev)->dev_flags)
+#define hci_dev_clear_flag(hdev, nr) clear_bit((nr), (hdev)->dev_flags)
+#define hci_dev_change_flag(hdev, nr) change_bit((nr), (hdev)->dev_flags)
+#define hci_dev_test_flag(hdev, nr) test_bit((nr), (hdev)->dev_flags)
+#define hci_dev_test_and_set_flag(hdev, nr) test_and_set_bit((nr), (hdev)->dev_flags)
+#define hci_dev_test_and_clear_flag(hdev, nr) test_and_clear_bit((nr), (hdev)->dev_flags)
+#define hci_dev_test_and_change_flag(hdev, nr) test_and_change_bit((nr), (hdev)->dev_flags)
+
+#define hci_dev_clear_volatile_flags(hdev) \
+ do { \
+ hci_dev_clear_flag(hdev, HCI_LE_SCAN); \
+ hci_dev_clear_flag(hdev, HCI_LE_ADV); \
+ hci_dev_clear_flag(hdev, HCI_LL_RPA_RESOLUTION);\
+ hci_dev_clear_flag(hdev, HCI_PERIODIC_INQ); \
+ } while (0)
+
+/* ----- HCI interface to upper protocols ----- */
+int l2cap_connect_ind(struct hci_dev *hdev, bdaddr_t *bdaddr);
+int l2cap_disconn_ind(struct hci_conn *hcon);
+void l2cap_recv_acldata(struct hci_conn *hcon, struct sk_buff *skb, u16 flags);
+
+#if IS_ENABLED(CONFIG_BT_BREDR)
+int sco_connect_ind(struct hci_dev *hdev, bdaddr_t *bdaddr, __u8 *flags);
+void sco_recv_scodata(struct hci_conn *hcon, struct sk_buff *skb);
+#else
+static inline int sco_connect_ind(struct hci_dev *hdev, bdaddr_t *bdaddr,
+ __u8 *flags)
+{
+ return 0;
+}
+
+static inline void sco_recv_scodata(struct hci_conn *hcon, struct sk_buff *skb)
+{
+}
+#endif
+
+/* ----- Inquiry cache ----- */
+#define INQUIRY_CACHE_AGE_MAX (HZ*30) /* 30 seconds */
+#define INQUIRY_ENTRY_AGE_MAX (HZ*60) /* 60 seconds */
+
+static inline void discovery_init(struct hci_dev *hdev)
+{
+ hdev->discovery.state = DISCOVERY_STOPPED;
+ INIT_LIST_HEAD(&hdev->discovery.all);
+ INIT_LIST_HEAD(&hdev->discovery.unknown);
+ INIT_LIST_HEAD(&hdev->discovery.resolve);
+ hdev->discovery.report_invalid_rssi = true;
+ hdev->discovery.rssi = HCI_RSSI_INVALID;
+}
+
+static inline void hci_discovery_filter_clear(struct hci_dev *hdev)
+{
+ hdev->discovery.result_filtering = false;
+ hdev->discovery.report_invalid_rssi = true;
+ hdev->discovery.rssi = HCI_RSSI_INVALID;
+ hdev->discovery.uuid_count = 0;
+ kfree(hdev->discovery.uuids);
+ hdev->discovery.uuids = NULL;
+ hdev->discovery.scan_start = 0;
+ hdev->discovery.scan_duration = 0;
+}
+
+bool hci_discovery_active(struct hci_dev *hdev);
+
+void hci_discovery_set_state(struct hci_dev *hdev, int state);
+
+static inline int inquiry_cache_empty(struct hci_dev *hdev)
+{
+ return list_empty(&hdev->discovery.all);
+}
+
+static inline long inquiry_cache_age(struct hci_dev *hdev)
+{
+ struct discovery_state *c = &hdev->discovery;
+ return jiffies - c->timestamp;
+}
+
+static inline long inquiry_entry_age(struct inquiry_entry *e)
+{
+ return jiffies - e->timestamp;
+}
+
+struct inquiry_entry *hci_inquiry_cache_lookup(struct hci_dev *hdev,
+ bdaddr_t *bdaddr);
+struct inquiry_entry *hci_inquiry_cache_lookup_unknown(struct hci_dev *hdev,
+ bdaddr_t *bdaddr);
+struct inquiry_entry *hci_inquiry_cache_lookup_resolve(struct hci_dev *hdev,
+ bdaddr_t *bdaddr,
+ int state);
+void hci_inquiry_cache_update_resolve(struct hci_dev *hdev,
+ struct inquiry_entry *ie);
+u32 hci_inquiry_cache_update(struct hci_dev *hdev, struct inquiry_data *data,
+ bool name_known);
+void hci_inquiry_cache_flush(struct hci_dev *hdev);
+
+/* ----- HCI Connections ----- */
+enum {
+ HCI_CONN_AUTH_PEND,
+ HCI_CONN_ENCRYPT_PEND,
+ HCI_CONN_RSWITCH_PEND,
+ HCI_CONN_MODE_CHANGE_PEND,
+ HCI_CONN_SCO_SETUP_PEND,
+ HCI_CONN_MGMT_CONNECTED,
+ HCI_CONN_SSP_ENABLED,
+ HCI_CONN_SC_ENABLED,
+ HCI_CONN_AES_CCM,
+ HCI_CONN_POWER_SAVE,
+ HCI_CONN_FLUSH_KEY,
+ HCI_CONN_ENCRYPT,
+ HCI_CONN_AUTH,
+ HCI_CONN_SECURE,
+ HCI_CONN_FIPS,
+ HCI_CONN_STK_ENCRYPT,
+ HCI_CONN_AUTH_INITIATOR,
+ HCI_CONN_DROP,
+ HCI_CONN_PARAM_REMOVAL_PEND,
+ HCI_CONN_NEW_LINK_KEY,
+ HCI_CONN_SCANNING,
+ HCI_CONN_AUTH_FAILURE,
+};
+
+static inline bool hci_conn_ssp_enabled(struct hci_conn *conn)
+{
+ struct hci_dev *hdev = conn->hdev;
+ return hci_dev_test_flag(hdev, HCI_SSP_ENABLED) &&
+ test_bit(HCI_CONN_SSP_ENABLED, &conn->flags);
+}
+
+static inline bool hci_conn_sc_enabled(struct hci_conn *conn)
+{
+ struct hci_dev *hdev = conn->hdev;
+ return hci_dev_test_flag(hdev, HCI_SC_ENABLED) &&
+ test_bit(HCI_CONN_SC_ENABLED, &conn->flags);
+}
+
+static inline void hci_conn_hash_add(struct hci_dev *hdev, struct hci_conn *c)
+{
+ struct hci_conn_hash *h = &hdev->conn_hash;
+ list_add_rcu(&c->list, &h->list);
+ switch (c->type) {
+ case ACL_LINK:
+ h->acl_num++;
+ break;
+ case AMP_LINK:
+ h->amp_num++;
+ break;
+ case LE_LINK:
+ h->le_num++;
+ if (c->role == HCI_ROLE_SLAVE)
+ h->le_num_slave++;
+ break;
+ case SCO_LINK:
+ case ESCO_LINK:
+ h->sco_num++;
+ break;
+ }
+}
+
+static inline void hci_conn_hash_del(struct hci_dev *hdev, struct hci_conn *c)
+{
+ struct hci_conn_hash *h = &hdev->conn_hash;
+
+ list_del_rcu(&c->list);
+ synchronize_rcu();
+
+ switch (c->type) {
+ case ACL_LINK:
+ h->acl_num--;
+ break;
+ case AMP_LINK:
+ h->amp_num--;
+ break;
+ case LE_LINK:
+ h->le_num--;
+ if (c->role == HCI_ROLE_SLAVE)
+ h->le_num_slave--;
+ break;
+ case SCO_LINK:
+ case ESCO_LINK:
+ h->sco_num--;
+ break;
+ }
+}
+
+static inline unsigned int hci_conn_num(struct hci_dev *hdev, __u8 type)
+{
+ struct hci_conn_hash *h = &hdev->conn_hash;
+ switch (type) {
+ case ACL_LINK:
+ return h->acl_num;
+ case AMP_LINK:
+ return h->amp_num;
+ case LE_LINK:
+ return h->le_num;
+ case SCO_LINK:
+ case ESCO_LINK:
+ return h->sco_num;
+ default:
+ return 0;
+ }
+}
+
+static inline unsigned int hci_conn_count(struct hci_dev *hdev)
+{
+ struct hci_conn_hash *c = &hdev->conn_hash;
+
+ return c->acl_num + c->amp_num + c->sco_num + c->le_num;
+}
+
+static inline __u8 hci_conn_lookup_type(struct hci_dev *hdev, __u16 handle)
+{
+ struct hci_conn_hash *h = &hdev->conn_hash;
+ struct hci_conn *c;
+ __u8 type = INVALID_LINK;
+
+ rcu_read_lock();
+
+ list_for_each_entry_rcu(c, &h->list, list) {
+ if (c->handle == handle) {
+ type = c->type;
+ break;
+ }
+ }
+
+ rcu_read_unlock();
+
+ return type;
+}
+
+static inline struct hci_conn *hci_conn_hash_lookup_handle(struct hci_dev *hdev,
+ __u16 handle)
+{
+ struct hci_conn_hash *h = &hdev->conn_hash;
+ struct hci_conn *c;
+
+ rcu_read_lock();
+
+ list_for_each_entry_rcu(c, &h->list, list) {
+ if (c->handle == handle) {
+ rcu_read_unlock();
+ return c;
+ }
+ }
+ rcu_read_unlock();
+
+ return NULL;
+}
+
+static inline struct hci_conn *hci_conn_hash_lookup_ba(struct hci_dev *hdev,
+ __u8 type, bdaddr_t *ba)
+{
+ struct hci_conn_hash *h = &hdev->conn_hash;
+ struct hci_conn *c;
+
+ rcu_read_lock();
+
+ list_for_each_entry_rcu(c, &h->list, list) {
+ if (c->type == type && !bacmp(&c->dst, ba)) {
+ rcu_read_unlock();
+ return c;
+ }
+ }
+
+ rcu_read_unlock();
+
+ return NULL;
+}
+
+static inline struct hci_conn *hci_conn_hash_lookup_le(struct hci_dev *hdev,
+ bdaddr_t *ba,
+ __u8 ba_type)
+{
+ struct hci_conn_hash *h = &hdev->conn_hash;
+ struct hci_conn *c;
+
+ rcu_read_lock();
+
+ list_for_each_entry_rcu(c, &h->list, list) {
+ if (c->type != LE_LINK)
+ continue;
+
+ if (ba_type == c->dst_type && !bacmp(&c->dst, ba)) {
+ rcu_read_unlock();
+ return c;
+ }
+ }
+
+ rcu_read_unlock();
+
+ return NULL;
+}
+
+static inline struct hci_conn *hci_conn_hash_lookup_state(struct hci_dev *hdev,
+ __u8 type, __u16 state)
+{
+ struct hci_conn_hash *h = &hdev->conn_hash;
+ struct hci_conn *c;
+
+ rcu_read_lock();
+
+ list_for_each_entry_rcu(c, &h->list, list) {
+ if (c->type == type && c->state == state) {
+ rcu_read_unlock();
+ return c;
+ }
+ }
+
+ rcu_read_unlock();
+
+ return NULL;
+}
+
+static inline struct hci_conn *hci_lookup_le_connect(struct hci_dev *hdev)
+{
+ struct hci_conn_hash *h = &hdev->conn_hash;
+ struct hci_conn *c;
+
+ rcu_read_lock();
+
+ list_for_each_entry_rcu(c, &h->list, list) {
+ if (c->type == LE_LINK && c->state == BT_CONNECT &&
+ !test_bit(HCI_CONN_SCANNING, &c->flags)) {
+ rcu_read_unlock();
+ return c;
+ }
+ }
+
+ rcu_read_unlock();
+
+ return NULL;
+}
+
+int hci_disconnect(struct hci_conn *conn, __u8 reason);
+bool hci_setup_sync(struct hci_conn *conn, __u16 handle);
+void hci_sco_setup(struct hci_conn *conn, __u8 status);
+
+struct hci_conn *hci_conn_add(struct hci_dev *hdev, int type, bdaddr_t *dst,
+ u8 role);
+int hci_conn_del(struct hci_conn *conn);
+void hci_conn_hash_flush(struct hci_dev *hdev);
+void hci_conn_check_pending(struct hci_dev *hdev);
+
+struct hci_chan *hci_chan_create(struct hci_conn *conn);
+void hci_chan_del(struct hci_chan *chan);
+void hci_chan_list_flush(struct hci_conn *conn);
+struct hci_chan *hci_chan_lookup_handle(struct hci_dev *hdev, __u16 handle);
+
+struct hci_conn *hci_connect_le_scan(struct hci_dev *hdev, bdaddr_t *dst,
+ u8 dst_type, u8 sec_level,
+ u16 conn_timeout,
+ enum conn_reasons conn_reason);
+struct hci_conn *hci_connect_le(struct hci_dev *hdev, bdaddr_t *dst,
+ u8 dst_type, u8 sec_level, u16 conn_timeout,
+ u8 role, bdaddr_t *direct_rpa);
+struct hci_conn *hci_connect_acl(struct hci_dev *hdev, bdaddr_t *dst,
+ u8 sec_level, u8 auth_type,
+ enum conn_reasons conn_reason);
+struct hci_conn *hci_connect_sco(struct hci_dev *hdev, int type, bdaddr_t *dst,
+ __u16 setting);
+int hci_conn_check_link_mode(struct hci_conn *conn);
+int hci_conn_check_secure(struct hci_conn *conn, __u8 sec_level);
+int hci_conn_security(struct hci_conn *conn, __u8 sec_level, __u8 auth_type,
+ bool initiator);
+int hci_conn_switch_role(struct hci_conn *conn, __u8 role);
+
+void hci_conn_enter_active_mode(struct hci_conn *conn, __u8 force_active);
+
+void hci_le_conn_failed(struct hci_conn *conn, u8 status);
+
+/*
+ * hci_conn_get() and hci_conn_put() are used to control the life-time of an
+ * "hci_conn" object. They do not guarantee that the hci_conn object is running,
+ * working or anything else. They just guarantee that the object is available
+ * and can be dereferenced. So you can use its locks, local variables and any
+ * other constant data.
+ * Before accessing runtime data, you _must_ lock the object and then check that
+ * it is still running. As soon as you release the locks, the connection might
+ * get dropped, though.
+ *
+ * On the other hand, hci_conn_hold() and hci_conn_drop() are used to control
+ * how long the underlying connection is held. So every channel that runs on the
+ * hci_conn object calls this to prevent the connection from disappearing. As
+ * long as you hold a device, you must also guarantee that you have a valid
+ * reference to the device via hci_conn_get() (or the initial reference from
+ * hci_conn_add()).
+ * The hold()/drop() ref-count is known to drop below 0 sometimes, which doesn't
+ * break because nobody cares for that. But this means, we cannot use
+ * _get()/_drop() in it, but require the caller to have a valid ref (FIXME).
+ */
+
+static inline struct hci_conn *hci_conn_get(struct hci_conn *conn)
+{
+ get_device(&conn->dev);
+ return conn;
+}
+
+static inline void hci_conn_put(struct hci_conn *conn)
+{
+ put_device(&conn->dev);
+}
+
+static inline void hci_conn_hold(struct hci_conn *conn)
+{
+ BT_DBG("hcon %p orig refcnt %d", conn, atomic_read(&conn->refcnt));
+
+ atomic_inc(&conn->refcnt);
+ cancel_delayed_work(&conn->disc_work);
+}
+
+static inline void hci_conn_drop(struct hci_conn *conn)
+{
+ BT_DBG("hcon %p orig refcnt %d", conn, atomic_read(&conn->refcnt));
+
+ if (atomic_dec_and_test(&conn->refcnt)) {
+ unsigned long timeo;
+
+ switch (conn->type) {
+ case ACL_LINK:
+ case LE_LINK:
+ cancel_delayed_work(&conn->idle_work);
+ if (conn->state == BT_CONNECTED) {
+ timeo = conn->disc_timeout;
+ if (!conn->out)
+ timeo *= 2;
+ } else {
+ timeo = 0;
+ }
+ break;
+
+ case AMP_LINK:
+ timeo = conn->disc_timeout;
+ break;
+
+ default:
+ timeo = 0;
+ break;
+ }
+
+ cancel_delayed_work(&conn->disc_work);
+ queue_delayed_work(conn->hdev->workqueue,
+ &conn->disc_work, timeo);
+ }
+}
+
+/* ----- HCI Devices ----- */
+static inline void hci_dev_put(struct hci_dev *d)
+{
+ BT_DBG("%s orig refcnt %d", d->name,
+ kref_read(&d->dev.kobj.kref));
+
+ put_device(&d->dev);
+}
+
+static inline struct hci_dev *hci_dev_hold(struct hci_dev *d)
+{
+ BT_DBG("%s orig refcnt %d", d->name,
+ kref_read(&d->dev.kobj.kref));
+
+ get_device(&d->dev);
+ return d;
+}
+
+#define hci_dev_lock(d) mutex_lock(&d->lock)
+#define hci_dev_unlock(d) mutex_unlock(&d->lock)
+
+#define to_hci_dev(d) container_of(d, struct hci_dev, dev)
+#define to_hci_conn(c) container_of(c, struct hci_conn, dev)
+
+static inline void *hci_get_drvdata(struct hci_dev *hdev)
+{
+ return dev_get_drvdata(&hdev->dev);
+}
+
+static inline void hci_set_drvdata(struct hci_dev *hdev, void *data)
+{
+ dev_set_drvdata(&hdev->dev, data);
+}
+
+struct hci_dev *hci_dev_get(int index);
+struct hci_dev *hci_get_route(bdaddr_t *dst, bdaddr_t *src, u8 src_type);
+
+struct hci_dev *hci_alloc_dev(void);
+void hci_free_dev(struct hci_dev *hdev);
+int hci_register_dev(struct hci_dev *hdev);
+void hci_unregister_dev(struct hci_dev *hdev);
+void hci_cleanup_dev(struct hci_dev *hdev);
+int hci_suspend_dev(struct hci_dev *hdev);
+int hci_resume_dev(struct hci_dev *hdev);
+int hci_reset_dev(struct hci_dev *hdev);
+int hci_recv_frame(struct hci_dev *hdev, struct sk_buff *skb);
+int hci_recv_diag(struct hci_dev *hdev, struct sk_buff *skb);
+__printf(2, 3) void hci_set_hw_info(struct hci_dev *hdev, const char *fmt, ...);
+__printf(2, 3) void hci_set_fw_info(struct hci_dev *hdev, const char *fmt, ...);
+
+static inline void hci_set_msft_opcode(struct hci_dev *hdev, __u16 opcode)
+{
+#if IS_ENABLED(CONFIG_BT_MSFTEXT)
+ hdev->msft_opcode = opcode;
+#endif
+}
+
+int hci_dev_open(__u16 dev);
+int hci_dev_close(__u16 dev);
+int hci_dev_do_close(struct hci_dev *hdev);
+int hci_dev_reset(__u16 dev);
+int hci_dev_reset_stat(__u16 dev);
+int hci_dev_cmd(unsigned int cmd, void __user *arg);
+int hci_get_dev_list(void __user *arg);
+int hci_get_dev_info(void __user *arg);
+int hci_get_conn_list(void __user *arg);
+int hci_get_conn_info(struct hci_dev *hdev, void __user *arg);
+int hci_get_auth_info(struct hci_dev *hdev, void __user *arg);
+int hci_inquiry(void __user *arg);
+
+struct bdaddr_list *hci_bdaddr_list_lookup(struct list_head *list,
+ bdaddr_t *bdaddr, u8 type);
+struct bdaddr_list_with_irk *hci_bdaddr_list_lookup_with_irk(
+ struct list_head *list, bdaddr_t *bdaddr,
+ u8 type);
+struct bdaddr_list_with_flags *
+hci_bdaddr_list_lookup_with_flags(struct list_head *list, bdaddr_t *bdaddr,
+ u8 type);
+int hci_bdaddr_list_add(struct list_head *list, bdaddr_t *bdaddr, u8 type);
+int hci_bdaddr_list_add_with_irk(struct list_head *list, bdaddr_t *bdaddr,
+ u8 type, u8 *peer_irk, u8 *local_irk);
+int hci_bdaddr_list_add_with_flags(struct list_head *list, bdaddr_t *bdaddr,
+ u8 type, u32 flags);
+int hci_bdaddr_list_del(struct list_head *list, bdaddr_t *bdaddr, u8 type);
+int hci_bdaddr_list_del_with_irk(struct list_head *list, bdaddr_t *bdaddr,
+ u8 type);
+int hci_bdaddr_list_del_with_flags(struct list_head *list, bdaddr_t *bdaddr,
+ u8 type);
+void hci_bdaddr_list_clear(struct list_head *list);
+
+struct hci_conn_params *hci_conn_params_lookup(struct hci_dev *hdev,
+ bdaddr_t *addr, u8 addr_type);
+struct hci_conn_params *hci_conn_params_add(struct hci_dev *hdev,
+ bdaddr_t *addr, u8 addr_type);
+void hci_conn_params_del(struct hci_dev *hdev, bdaddr_t *addr, u8 addr_type);
+void hci_conn_params_clear_disabled(struct hci_dev *hdev);
+
+struct hci_conn_params *hci_pend_le_action_lookup(struct list_head *list,
+ bdaddr_t *addr,
+ u8 addr_type);
+
+void hci_uuids_clear(struct hci_dev *hdev);
+
+void hci_link_keys_clear(struct hci_dev *hdev);
+struct link_key *hci_find_link_key(struct hci_dev *hdev, bdaddr_t *bdaddr);
+struct link_key *hci_add_link_key(struct hci_dev *hdev, struct hci_conn *conn,
+ bdaddr_t *bdaddr, u8 *val, u8 type,
+ u8 pin_len, bool *persistent);
+struct smp_ltk *hci_add_ltk(struct hci_dev *hdev, bdaddr_t *bdaddr,
+ u8 addr_type, u8 type, u8 authenticated,
+ u8 tk[16], u8 enc_size, __le16 ediv, __le64 rand);
+struct smp_ltk *hci_find_ltk(struct hci_dev *hdev, bdaddr_t *bdaddr,
+ u8 addr_type, u8 role);
+int hci_remove_ltk(struct hci_dev *hdev, bdaddr_t *bdaddr, u8 bdaddr_type);
+void hci_smp_ltks_clear(struct hci_dev *hdev);
+int hci_remove_link_key(struct hci_dev *hdev, bdaddr_t *bdaddr);
+
+struct smp_irk *hci_find_irk_by_rpa(struct hci_dev *hdev, bdaddr_t *rpa);
+struct smp_irk *hci_find_irk_by_addr(struct hci_dev *hdev, bdaddr_t *bdaddr,
+ u8 addr_type);
+struct smp_irk *hci_add_irk(struct hci_dev *hdev, bdaddr_t *bdaddr,
+ u8 addr_type, u8 val[16], bdaddr_t *rpa);
+void hci_remove_irk(struct hci_dev *hdev, bdaddr_t *bdaddr, u8 addr_type);
+bool hci_is_blocked_key(struct hci_dev *hdev, u8 type, u8 val[16]);
+void hci_blocked_keys_clear(struct hci_dev *hdev);
+void hci_smp_irks_clear(struct hci_dev *hdev);
+
+bool hci_bdaddr_is_paired(struct hci_dev *hdev, bdaddr_t *bdaddr, u8 type);
+
+void hci_remote_oob_data_clear(struct hci_dev *hdev);
+struct oob_data *hci_find_remote_oob_data(struct hci_dev *hdev,
+ bdaddr_t *bdaddr, u8 bdaddr_type);
+int hci_add_remote_oob_data(struct hci_dev *hdev, bdaddr_t *bdaddr,
+ u8 bdaddr_type, u8 *hash192, u8 *rand192,
+ u8 *hash256, u8 *rand256);
+int hci_remove_remote_oob_data(struct hci_dev *hdev, bdaddr_t *bdaddr,
+ u8 bdaddr_type);
+
+void hci_adv_instances_clear(struct hci_dev *hdev);
+struct adv_info *hci_find_adv_instance(struct hci_dev *hdev, u8 instance);
+struct adv_info *hci_get_next_instance(struct hci_dev *hdev, u8 instance);
+int hci_add_adv_instance(struct hci_dev *hdev, u8 instance, u32 flags,
+ u16 adv_data_len, u8 *adv_data,
+ u16 scan_rsp_len, u8 *scan_rsp_data,
+ u16 timeout, u16 duration);
+int hci_remove_adv_instance(struct hci_dev *hdev, u8 instance);
+void hci_adv_instances_set_rpa_expired(struct hci_dev *hdev, bool rpa_expired);
+
+void hci_adv_monitors_clear(struct hci_dev *hdev);
+void hci_free_adv_monitor(struct adv_monitor *monitor);
+int hci_add_adv_monitor(struct hci_dev *hdev, struct adv_monitor *monitor);
+int hci_remove_adv_monitor(struct hci_dev *hdev, u16 handle);
+bool hci_is_adv_monitoring(struct hci_dev *hdev);
+
+void hci_event_packet(struct hci_dev *hdev, struct sk_buff *skb);
+
+void hci_init_sysfs(struct hci_dev *hdev);
+void hci_conn_init_sysfs(struct hci_conn *conn);
+void hci_conn_add_sysfs(struct hci_conn *conn);
+void hci_conn_del_sysfs(struct hci_conn *conn);
+
+#define SET_HCIDEV_DEV(hdev, pdev) ((hdev)->dev.parent = (pdev))
+
+/* ----- LMP capabilities ----- */
+#define lmp_encrypt_capable(dev) ((dev)->features[0][0] & LMP_ENCRYPT)
+#define lmp_rswitch_capable(dev) ((dev)->features[0][0] & LMP_RSWITCH)
+#define lmp_hold_capable(dev) ((dev)->features[0][0] & LMP_HOLD)
+#define lmp_sniff_capable(dev) ((dev)->features[0][0] & LMP_SNIFF)
+#define lmp_park_capable(dev) ((dev)->features[0][1] & LMP_PARK)
+#define lmp_inq_rssi_capable(dev) ((dev)->features[0][3] & LMP_RSSI_INQ)
+#define lmp_esco_capable(dev) ((dev)->features[0][3] & LMP_ESCO)
+#define lmp_bredr_capable(dev) (!((dev)->features[0][4] & LMP_NO_BREDR))
+#define lmp_le_capable(dev) ((dev)->features[0][4] & LMP_LE)
+#define lmp_sniffsubr_capable(dev) ((dev)->features[0][5] & LMP_SNIFF_SUBR)
+#define lmp_pause_enc_capable(dev) ((dev)->features[0][5] & LMP_PAUSE_ENC)
+#define lmp_ext_inq_capable(dev) ((dev)->features[0][6] & LMP_EXT_INQ)
+#define lmp_le_br_capable(dev) (!!((dev)->features[0][6] & LMP_SIMUL_LE_BR))
+#define lmp_ssp_capable(dev) ((dev)->features[0][6] & LMP_SIMPLE_PAIR)
+#define lmp_no_flush_capable(dev) ((dev)->features[0][6] & LMP_NO_FLUSH)
+#define lmp_lsto_capable(dev) ((dev)->features[0][7] & LMP_LSTO)
+#define lmp_inq_tx_pwr_capable(dev) ((dev)->features[0][7] & LMP_INQ_TX_PWR)
+#define lmp_ext_feat_capable(dev) ((dev)->features[0][7] & LMP_EXTFEATURES)
+#define lmp_transp_capable(dev) ((dev)->features[0][2] & LMP_TRANSPARENT)
+#define lmp_edr_2m_capable(dev) ((dev)->features[0][3] & LMP_EDR_2M)
+#define lmp_edr_3m_capable(dev) ((dev)->features[0][3] & LMP_EDR_3M)
+#define lmp_edr_3slot_capable(dev) ((dev)->features[0][4] & LMP_EDR_3SLOT)
+#define lmp_edr_5slot_capable(dev) ((dev)->features[0][5] & LMP_EDR_5SLOT)
+
+/* ----- Extended LMP capabilities ----- */
+#define lmp_csb_master_capable(dev) ((dev)->features[2][0] & LMP_CSB_MASTER)
+#define lmp_csb_slave_capable(dev) ((dev)->features[2][0] & LMP_CSB_SLAVE)
+#define lmp_sync_train_capable(dev) ((dev)->features[2][0] & LMP_SYNC_TRAIN)
+#define lmp_sync_scan_capable(dev) ((dev)->features[2][0] & LMP_SYNC_SCAN)
+#define lmp_sc_capable(dev) ((dev)->features[2][1] & LMP_SC)
+#define lmp_ping_capable(dev) ((dev)->features[2][1] & LMP_PING)
+
+/* ----- Host capabilities ----- */
+#define lmp_host_ssp_capable(dev) ((dev)->features[1][0] & LMP_HOST_SSP)
+#define lmp_host_sc_capable(dev) ((dev)->features[1][0] & LMP_HOST_SC)
+#define lmp_host_le_capable(dev) (!!((dev)->features[1][0] & LMP_HOST_LE))
+#define lmp_host_le_br_capable(dev) (!!((dev)->features[1][0] & LMP_HOST_LE_BREDR))
+
+#define hdev_is_powered(dev) (test_bit(HCI_UP, &(dev)->flags) && \
+ !hci_dev_test_flag(dev, HCI_AUTO_OFF))
+#define bredr_sc_enabled(dev) (lmp_sc_capable(dev) && \
+ hci_dev_test_flag(dev, HCI_SC_ENABLED))
+
+#define scan_1m(dev) (((dev)->le_tx_def_phys & HCI_LE_SET_PHY_1M) || \
+ ((dev)->le_rx_def_phys & HCI_LE_SET_PHY_1M))
+
+#define scan_2m(dev) (((dev)->le_tx_def_phys & HCI_LE_SET_PHY_2M) || \
+ ((dev)->le_rx_def_phys & HCI_LE_SET_PHY_2M))
+
+#define scan_coded(dev) (((dev)->le_tx_def_phys & HCI_LE_SET_PHY_CODED) || \
+ ((dev)->le_rx_def_phys & HCI_LE_SET_PHY_CODED))
+
+/* Use LL Privacy based address resolution if supported */
+#define use_ll_privacy(dev) ((dev)->le_features[0] & HCI_LE_LL_PRIVACY)
+
+/* Use ext scanning if set ext scan param and ext scan enable is supported */
+#define use_ext_scan(dev) (((dev)->commands[37] & 0x20) && \
+ ((dev)->commands[37] & 0x40))
+/* Use ext create connection if command is supported */
+#define use_ext_conn(dev) ((dev)->commands[37] & 0x80)
+
+/* Extended advertising support */
+#define ext_adv_capable(dev) (((dev)->le_features[1] & HCI_LE_EXT_ADV))
+
+/* ----- HCI protocols ----- */
+#define HCI_PROTO_DEFER 0x01
+
+static inline int hci_proto_connect_ind(struct hci_dev *hdev, bdaddr_t *bdaddr,
+ __u8 type, __u8 *flags)
+{
+ switch (type) {
+ case ACL_LINK:
+ return l2cap_connect_ind(hdev, bdaddr);
+
+ case SCO_LINK:
+ case ESCO_LINK:
+ return sco_connect_ind(hdev, bdaddr, flags);
+
+ default:
+ BT_ERR("unknown link type %d", type);
+ return -EINVAL;
+ }
+}
+
+static inline int hci_proto_disconn_ind(struct hci_conn *conn)
+{
+ if (conn->type != ACL_LINK && conn->type != LE_LINK)
+ return HCI_ERROR_REMOTE_USER_TERM;
+
+ return l2cap_disconn_ind(conn);
+}
+
+/* ----- HCI callbacks ----- */
+struct hci_cb {
+ struct list_head list;
+
+ char *name;
+
+ void (*connect_cfm) (struct hci_conn *conn, __u8 status);
+ void (*disconn_cfm) (struct hci_conn *conn, __u8 status);
+ void (*security_cfm) (struct hci_conn *conn, __u8 status,
+ __u8 encrypt);
+ void (*key_change_cfm) (struct hci_conn *conn, __u8 status);
+ void (*role_switch_cfm) (struct hci_conn *conn, __u8 status, __u8 role);
+};
+
+static inline void hci_connect_cfm(struct hci_conn *conn, __u8 status)
+{
+ struct hci_cb *cb;
+
+ mutex_lock(&hci_cb_list_lock);
+ list_for_each_entry(cb, &hci_cb_list, list) {
+ if (cb->connect_cfm)
+ cb->connect_cfm(conn, status);
+ }
+ mutex_unlock(&hci_cb_list_lock);
+
+ if (conn->connect_cfm_cb)
+ conn->connect_cfm_cb(conn, status);
+}
+
+static inline void hci_disconn_cfm(struct hci_conn *conn, __u8 reason)
+{
+ struct hci_cb *cb;
+
+ mutex_lock(&hci_cb_list_lock);
+ list_for_each_entry(cb, &hci_cb_list, list) {
+ if (cb->disconn_cfm)
+ cb->disconn_cfm(conn, reason);
+ }
+ mutex_unlock(&hci_cb_list_lock);
+
+ if (conn->disconn_cfm_cb)
+ conn->disconn_cfm_cb(conn, reason);
+}
+
+static inline void hci_auth_cfm(struct hci_conn *conn, __u8 status)
+{
+ struct hci_cb *cb;
+ __u8 encrypt;
+
+ if (test_bit(HCI_CONN_ENCRYPT_PEND, &conn->flags))
+ return;
+
+ encrypt = test_bit(HCI_CONN_ENCRYPT, &conn->flags) ? 0x01 : 0x00;
+
+ mutex_lock(&hci_cb_list_lock);
+ list_for_each_entry(cb, &hci_cb_list, list) {
+ if (cb->security_cfm)
+ cb->security_cfm(conn, status, encrypt);
+ }
+ mutex_unlock(&hci_cb_list_lock);
+
+ if (conn->security_cfm_cb)
+ conn->security_cfm_cb(conn, status);
+}
+
+static inline void hci_encrypt_cfm(struct hci_conn *conn, __u8 status)
+{
+ struct hci_cb *cb;
+ __u8 encrypt;
+
+ if (conn->state == BT_CONFIG) {
+ if (!status)
+ conn->state = BT_CONNECTED;
+
+ hci_connect_cfm(conn, status);
+ hci_conn_drop(conn);
+ return;
+ }
+
+ if (!test_bit(HCI_CONN_ENCRYPT, &conn->flags))
+ encrypt = 0x00;
+ else if (test_bit(HCI_CONN_AES_CCM, &conn->flags))
+ encrypt = 0x02;
+ else
+ encrypt = 0x01;
+
+ if (!status) {
+ if (conn->sec_level == BT_SECURITY_SDP)
+ conn->sec_level = BT_SECURITY_LOW;
+
+ if (conn->pending_sec_level > conn->sec_level)
+ conn->sec_level = conn->pending_sec_level;
+ }
+
+ mutex_lock(&hci_cb_list_lock);
+ list_for_each_entry(cb, &hci_cb_list, list) {
+ if (cb->security_cfm)
+ cb->security_cfm(conn, status, encrypt);
+ }
+ mutex_unlock(&hci_cb_list_lock);
+
+ if (conn->security_cfm_cb)
+ conn->security_cfm_cb(conn, status);
+}
+
+static inline void hci_key_change_cfm(struct hci_conn *conn, __u8 status)
+{
+ struct hci_cb *cb;
+
+ mutex_lock(&hci_cb_list_lock);
+ list_for_each_entry(cb, &hci_cb_list, list) {
+ if (cb->key_change_cfm)
+ cb->key_change_cfm(conn, status);
+ }
+ mutex_unlock(&hci_cb_list_lock);
+}
+
+static inline void hci_role_switch_cfm(struct hci_conn *conn, __u8 status,
+ __u8 role)
+{
+ struct hci_cb *cb;
+
+ mutex_lock(&hci_cb_list_lock);
+ list_for_each_entry(cb, &hci_cb_list, list) {
+ if (cb->role_switch_cfm)
+ cb->role_switch_cfm(conn, status, role);
+ }
+ mutex_unlock(&hci_cb_list_lock);
+}
+
+static inline void *eir_get_data(u8 *eir, size_t eir_len, u8 type,
+ size_t *data_len)
+{
+ size_t parsed = 0;
+
+ if (eir_len < 2)
+ return NULL;
+
+ while (parsed < eir_len - 1) {
+ u8 field_len = eir[0];
+
+ if (field_len == 0)
+ break;
+
+ parsed += field_len + 1;
+
+ if (parsed > eir_len)
+ break;
+
+ if (eir[1] != type) {
+ eir += field_len + 1;
+ continue;
+ }
+
+ /* Zero length data */
+ if (field_len == 1)
+ return NULL;
+
+ if (data_len)
+ *data_len = field_len - 1;
+
+ return &eir[2];
+ }
+
+ return NULL;
+}
+
+static inline bool hci_bdaddr_is_rpa(bdaddr_t *bdaddr, u8 addr_type)
+{
+ if (addr_type != ADDR_LE_DEV_RANDOM)
+ return false;
+
+ if ((bdaddr->b[5] & 0xc0) == 0x40)
+ return true;
+
+ return false;
+}
+
+static inline bool hci_is_identity_address(bdaddr_t *addr, u8 addr_type)
+{
+ if (addr_type == ADDR_LE_DEV_PUBLIC)
+ return true;
+
+ /* Check for Random Static address type */
+ if ((addr->b[5] & 0xc0) == 0xc0)
+ return true;
+
+ return false;
+}
+
+static inline struct smp_irk *hci_get_irk(struct hci_dev *hdev,
+ bdaddr_t *bdaddr, u8 addr_type)
+{
+ if (!hci_bdaddr_is_rpa(bdaddr, addr_type))
+ return NULL;
+
+ return hci_find_irk_by_rpa(hdev, bdaddr);
+}
+
+static inline int hci_check_conn_params(u16 min, u16 max, u16 latency,
+ u16 to_multiplier)
+{
+ u16 max_latency;
+
+ if (min > max || min < 6 || max > 3200)
+ return -EINVAL;
+
+ if (to_multiplier < 10 || to_multiplier > 3200)
+ return -EINVAL;
+
+ if (max >= to_multiplier * 8)
+ return -EINVAL;
+
+ max_latency = (to_multiplier * 4 / max) - 1;
+ if (latency > 499 || latency > max_latency)
+ return -EINVAL;
+
+ return 0;
+}
+
+int hci_register_cb(struct hci_cb *hcb);
+int hci_unregister_cb(struct hci_cb *hcb);
+
+struct sk_buff *__hci_cmd_sync(struct hci_dev *hdev, u16 opcode, u32 plen,
+ const void *param, u32 timeout);
+struct sk_buff *__hci_cmd_sync_ev(struct hci_dev *hdev, u16 opcode, u32 plen,
+ const void *param, u8 event, u32 timeout);
+int __hci_cmd_send(struct hci_dev *hdev, u16 opcode, u32 plen,
+ const void *param);
+
+int hci_send_cmd(struct hci_dev *hdev, __u16 opcode, __u32 plen,
+ const void *param);
+void hci_send_acl(struct hci_chan *chan, struct sk_buff *skb, __u16 flags);
+void hci_send_sco(struct hci_conn *conn, struct sk_buff *skb);
+
+void *hci_sent_cmd_data(struct hci_dev *hdev, __u16 opcode);
+
+struct sk_buff *hci_cmd_sync(struct hci_dev *hdev, u16 opcode, u32 plen,
+ const void *param, u32 timeout);
+
+u32 hci_conn_get_phy(struct hci_conn *conn);
+
+/* ----- HCI Sockets ----- */
+void hci_send_to_sock(struct hci_dev *hdev, struct sk_buff *skb);
+void hci_send_to_channel(unsigned short channel, struct sk_buff *skb,
+ int flag, struct sock *skip_sk);
+void hci_send_to_monitor(struct hci_dev *hdev, struct sk_buff *skb);
+void hci_send_monitor_ctrl_event(struct hci_dev *hdev, u16 event,
+ void *data, u16 data_len, ktime_t tstamp,
+ int flag, struct sock *skip_sk);
+
+void hci_sock_dev_event(struct hci_dev *hdev, int event);
+
+#define HCI_MGMT_VAR_LEN BIT(0)
+#define HCI_MGMT_NO_HDEV BIT(1)
+#define HCI_MGMT_UNTRUSTED BIT(2)
+#define HCI_MGMT_UNCONFIGURED BIT(3)
+#define HCI_MGMT_HDEV_OPTIONAL BIT(4)
+
+struct hci_mgmt_handler {
+ int (*func) (struct sock *sk, struct hci_dev *hdev, void *data,
+ u16 data_len);
+ size_t data_len;
+ unsigned long flags;
+};
+
+struct hci_mgmt_chan {
+ struct list_head list;
+ unsigned short channel;
+ size_t handler_count;
+ const struct hci_mgmt_handler *handlers;
+ void (*hdev_init) (struct sock *sk, struct hci_dev *hdev);
+};
+
+int hci_mgmt_chan_register(struct hci_mgmt_chan *c);
+void hci_mgmt_chan_unregister(struct hci_mgmt_chan *c);
+
+/* Management interface */
+#define DISCOV_TYPE_BREDR (BIT(BDADDR_BREDR))
+#define DISCOV_TYPE_LE (BIT(BDADDR_LE_PUBLIC) | \
+ BIT(BDADDR_LE_RANDOM))
+#define DISCOV_TYPE_INTERLEAVED (BIT(BDADDR_BREDR) | \
+ BIT(BDADDR_LE_PUBLIC) | \
+ BIT(BDADDR_LE_RANDOM))
+
+/* These LE scan and inquiry parameters were chosen according to LE General
+ * Discovery Procedure specification.
+ */
+#define DISCOV_LE_SCAN_WIN 0x12
+#define DISCOV_LE_SCAN_INT 0x12
+#define DISCOV_LE_TIMEOUT 10240 /* msec */
+#define DISCOV_INTERLEAVED_TIMEOUT 5120 /* msec */
+#define DISCOV_INTERLEAVED_INQUIRY_LEN 0x04
+#define DISCOV_BREDR_INQUIRY_LEN 0x08
+#define DISCOV_LE_RESTART_DELAY msecs_to_jiffies(200) /* msec */
+#define DISCOV_LE_FAST_ADV_INT_MIN 100 /* msec */
+#define DISCOV_LE_FAST_ADV_INT_MAX 150 /* msec */
+
+void mgmt_fill_version_info(void *ver);
+int mgmt_new_settings(struct hci_dev *hdev);
+void mgmt_index_added(struct hci_dev *hdev);
+void mgmt_index_removed(struct hci_dev *hdev);
+void mgmt_set_powered_failed(struct hci_dev *hdev, int err);
+void mgmt_power_on(struct hci_dev *hdev, int err);
+void __mgmt_power_off(struct hci_dev *hdev);
+void mgmt_new_link_key(struct hci_dev *hdev, struct link_key *key,
+ bool persistent);
+void mgmt_device_connected(struct hci_dev *hdev, struct hci_conn *conn,
+ u32 flags, u8 *name, u8 name_len);
+void mgmt_device_disconnected(struct hci_dev *hdev, bdaddr_t *bdaddr,
+ u8 link_type, u8 addr_type, u8 reason,
+ bool mgmt_connected);
+void mgmt_disconnect_failed(struct hci_dev *hdev, bdaddr_t *bdaddr,
+ u8 link_type, u8 addr_type, u8 status);
+void mgmt_connect_failed(struct hci_dev *hdev, bdaddr_t *bdaddr, u8 link_type,
+ u8 addr_type, u8 status);
+void mgmt_pin_code_request(struct hci_dev *hdev, bdaddr_t *bdaddr, u8 secure);
+void mgmt_pin_code_reply_complete(struct hci_dev *hdev, bdaddr_t *bdaddr,
+ u8 status);
+void mgmt_pin_code_neg_reply_complete(struct hci_dev *hdev, bdaddr_t *bdaddr,
+ u8 status);
+int mgmt_user_confirm_request(struct hci_dev *hdev, bdaddr_t *bdaddr,
+ u8 link_type, u8 addr_type, u32 value,
+ u8 confirm_hint);
+int mgmt_user_confirm_reply_complete(struct hci_dev *hdev, bdaddr_t *bdaddr,
+ u8 link_type, u8 addr_type, u8 status);
+int mgmt_user_confirm_neg_reply_complete(struct hci_dev *hdev, bdaddr_t *bdaddr,
+ u8 link_type, u8 addr_type, u8 status);
+int mgmt_user_passkey_request(struct hci_dev *hdev, bdaddr_t *bdaddr,
+ u8 link_type, u8 addr_type);
+int mgmt_user_passkey_reply_complete(struct hci_dev *hdev, bdaddr_t *bdaddr,
+ u8 link_type, u8 addr_type, u8 status);
+int mgmt_user_passkey_neg_reply_complete(struct hci_dev *hdev, bdaddr_t *bdaddr,
+ u8 link_type, u8 addr_type, u8 status);
+int mgmt_user_passkey_notify(struct hci_dev *hdev, bdaddr_t *bdaddr,
+ u8 link_type, u8 addr_type, u32 passkey,
+ u8 entered);
+void mgmt_auth_failed(struct hci_conn *conn, u8 status);
+void mgmt_auth_enable_complete(struct hci_dev *hdev, u8 status);
+void mgmt_ssp_enable_complete(struct hci_dev *hdev, u8 enable, u8 status);
+void mgmt_set_class_of_dev_complete(struct hci_dev *hdev, u8 *dev_class,
+ u8 status);
+void mgmt_set_local_name_complete(struct hci_dev *hdev, u8 *name, u8 status);
+void mgmt_start_discovery_complete(struct hci_dev *hdev, u8 status);
+void mgmt_stop_discovery_complete(struct hci_dev *hdev, u8 status);
+void mgmt_device_found(struct hci_dev *hdev, bdaddr_t *bdaddr, u8 link_type,
+ u8 addr_type, u8 *dev_class, s8 rssi, u32 flags,
+ u8 *eir, u16 eir_len, u8 *scan_rsp, u8 scan_rsp_len);
+void mgmt_remote_name(struct hci_dev *hdev, bdaddr_t *bdaddr, u8 link_type,
+ u8 addr_type, s8 rssi, u8 *name, u8 name_len);
+void mgmt_discovering(struct hci_dev *hdev, u8 discovering);
+void mgmt_suspending(struct hci_dev *hdev, u8 state);
+void mgmt_resuming(struct hci_dev *hdev, u8 reason, bdaddr_t *bdaddr,
+ u8 addr_type);
+bool mgmt_powering_down(struct hci_dev *hdev);
+void mgmt_new_ltk(struct hci_dev *hdev, struct smp_ltk *key, bool persistent);
+void mgmt_new_irk(struct hci_dev *hdev, struct smp_irk *irk, bool persistent);
+void mgmt_new_csrk(struct hci_dev *hdev, struct smp_csrk *csrk,
+ bool persistent);
+void mgmt_new_conn_param(struct hci_dev *hdev, bdaddr_t *bdaddr,
+ u8 bdaddr_type, u8 store_hint, u16 min_interval,
+ u16 max_interval, u16 latency, u16 timeout);
+void mgmt_smp_complete(struct hci_conn *conn, bool complete);
+bool mgmt_get_connectable(struct hci_dev *hdev);
+void mgmt_set_connectable_complete(struct hci_dev *hdev, u8 status);
+void mgmt_set_discoverable_complete(struct hci_dev *hdev, u8 status);
+u8 mgmt_get_adv_discov_flags(struct hci_dev *hdev);
+void mgmt_advertising_added(struct sock *sk, struct hci_dev *hdev,
+ u8 instance);
+void mgmt_advertising_removed(struct sock *sk, struct hci_dev *hdev,
+ u8 instance);
+int mgmt_phy_configuration_changed(struct hci_dev *hdev, struct sock *skip);
+
+u8 hci_le_conn_update(struct hci_conn *conn, u16 min, u16 max, u16 latency,
+ u16 to_multiplier);
+void hci_le_start_enc(struct hci_conn *conn, __le16 ediv, __le64 rand,
+ __u8 ltk[16], __u8 key_size);
+
+void hci_copy_identity_address(struct hci_dev *hdev, bdaddr_t *bdaddr,
+ u8 *bdaddr_type);
+
+#define SCO_AIRMODE_MASK 0x0003
+#define SCO_AIRMODE_CVSD 0x0000
+#define SCO_AIRMODE_TRANSP 0x0003
+
+#endif /* __HCI_CORE_H */